Composite score - coming soon
Mike Rounds
U.S. Senator · South Dakota
- Republican
- Since 2015
- Tenure: 2–3 terms
Refreshed 19 h ago
As of 2026-10-19 · Methodology 2026.10.1Contact info
Capitol office
716 Hart Senate Office Building Washington DC 20510
202-224-5842
District offices
Aberdeen · Pierre · Rapid City · Sioux Falls
View all contact info
- Official website
- Biographical Directory of Congress
- GovTrack
- Capitol office: 716 Hart Senate Office Building Washington DC 20510 · 202-224-5842
- 221 Brown County Highway 19 S, Suite 112, Aberdeen, SD, 57401 · 605-225-0366
- 111 W. Capitol Ave., Suite 210, Pierre, SD, 57501 · 605-224-1450
- 603 Omaha St., Suite 100, Rapid City, SD, 57701 · 605-343-5035
- 320 N. Main Ave., Suite A, Sioux Falls, SD, 57104 · 605-336-0486
Evidence & sources
U.S. Senate roll-call votes
Votes and participation (senate.gov)
Congress.gov bill records
Sponsored and enacted bills
congress-legislators
Terms, committees, offices
Stale, last successful update 2026-10-23
View all sourcesExplore this record
Scorecard
Voting Record
73.2/ 100
Ranked 17 of 52 in the Senate majority
Voting Record
73.2/ 100
How this score is calculated:
Roll calls cast
907 of 911 while seated (99.6%)
85th percentile in cohort · 30 % weight
Substantive bills sponsored
61 of 62 sponsored · 70.9 points
68th percentile in cohort · 70 % weight
Bills enacted
0 sponsored · 3 cosponsored
2 passed a chamber · 3 reported · 56 introduced
Promise Adherence
0 of 5 promises scored
Collecting data - coming soon
Promise Adherence
0 of 5 promises scored
How this score is calculated:
Reviewed promises
0 scored of 5 needed
0 promises from 0 sources this term
Days in office this term
2,129 days (180 needed)
Promise capture coverage
0 of 3 source kinds settled
Offices held
| Office | Seat | Party | From | To | Congress |
|---|---|---|---|---|---|
| U.S. Senator | SD, statewide | Republican | 2021-01-03 | 2027-01-03 | 117 |
| U.S. Senator | SD, statewide | Republican | 2015-01-06 | 2021-01-03 | 114 |